Product description Partial discharge test system is mainly used for testing frequency voltage insulation level of various insulation materials insulation structure and electrical products also as partial discharge frequency testing power supply for testing object such as transformer mutual inductor and lightning arresters. It widely used in electrical manufacturing power operation departments research institutes and universities. Technical Parameters: Rated Capacity 5-1000kVA Impedance Voltage 10% Input Voltage AC 220V/AC 380V Output Voltage Waveform Power frequency sine wave Output Voltage AC 0-1000kV Surface Temperature Oil immersed: